I have a 2004 blaster all stock except a full fmf exhaust. My buddy just got a Raptor 250 with a 270 bore kit, tires and a HMF. What would win in a drag race?
Just learned today that he has high comp. piston and cam as well as the other mods I mentioned. Another question is if a 250r with suspension, pipe, and tires will beat a big bore yz 125 with new tires as well.
Did it, barely got beat but not bad because mine was only $900 and the 250 was $3,000.Run'em and find out. Worst that happens is you take the L. It happens.
Maybe when it blows up I willOK...Now its time for some porting, head re-chambering, and proper jetting.
This will double your stock factory output of 16-17hp to around 30 hp.